CN208819389U - A kind of multimedia education system of voice control - Google Patents
A kind of multimedia education system of voice control Download PDFInfo
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- CN208819389U CN208819389U CN201820549739.1U CN201820549739U CN208819389U CN 208819389 U CN208819389 U CN 208819389U CN 201820549739 U CN201820549739 U CN 201820549739U CN 208819389 U CN208819389 U CN 208819389U
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- voice control
- controller
- control circuit
- projector
- delay circuit
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Abstract
The utility model relates to the multimedia education system of voice control, including projection screen (1), host (2) and projector (3)；It include controller (4), voice control circuit (6) and active player (10) in the host (2).Voice control circuit (6) can identify the language of people, give controller (4) to issue corresponding instruction, controller (4) controls active player (10) and plays selected courseware content.
Description
Technical field
The utility model relates to a kind of multimedia education systems, and in particular to a kind of to realize automatic control by voice
Multimedia education system.
Background technique
Have existed since ancient times in fact for multimedia teaching, and teacher imparts knowledge to students by text, sound, picture always.But
Start the 1980s to occur teaching using the integrated uses such as a variety of electronic mediums such as magic lantern, projection, recording, video recording and classroom
It learns, this instructional technology is also known as Multimedia Teaching or electronic teaching, from the nineties, with the rapid development of computer technology
With it is universal, multimedia computer gradually uses status instead of the synthesis of previous Multiform Teaching Media, it is using calculating
Machine technology, network technology, mechanics of communication and scientific and normal management are related to study, teaching, scientific research, management and service for life
All information resources integrated, integrated and comprehensively digitized, to constitute unified customer management, unified resource management
It is controlled with unified permission.It carries out multimedia teaching by projector to have been popularized in various kinds of schools, teacher saves
The labour of writing blackboard, saves instructional blocks of time, improves efficiency of teaching.However, in actual multimedia teaching, it is more
The automatization level of multi media for teaching is not high.For example, the opening and closing of projector and its projection screen not enough automate, projector
It needs to preheat before opening, and needs to radiate before being turned off a period of time, can protect projector in this way, however existing skill
It there is a problem in this regard in art.In addition, when being explained before teacher's projection screen, if necessary to switch the courseware page
When, it needs to go to console and carries out manual clicking operation, this is time-consuming and laborious, and the degree of automation is insufficient.
Utility model content
The utility model, which provides one kind, can protect multimedia projector, postpone the tutoring system of its service life；Simultaneously
It can be realized the tutoring system of voice control.
The utility model adopts the following technical solution:
A kind of multimedia education system of voice control, including shadow curtain 1, host 2, projector 3；The host 2 includes
Controller 4, delay circuit 5, voice control circuit 6, power supply 7, display screen 8, trigger 9 and active player 10；Delay electricity
Road 5, voice control circuit 6, power supply 7, display screen 8, trigger 9 and active player 10 are connect with controller 4, power supply 7
For controller 4, delay circuit 5, voice control circuit 6, display screen 8, trigger 9 and active player 10 provide work electricity
Power；It is characterized by: the delay circuit 5 is connect with projector and projection screen, projector can be set by delay circuit
With the opening and closing time of projection screen；The voice control circuit 6 includes sound pick-up 61, acoustic transducer 62, comparator
63, data processor 64 and memory 65 can control the class to be played of active player 10 by voice control circuit 6
Part content.
Detailed description of the invention
The agent structure schematic diagram of Fig. 1 multimedia education system；
The structural schematic diagram of Fig. 2 host；
The structural schematic diagram of Fig. 3 voice control circuit；
1, projection screen, 2, host, 3, projector, 4, controller, 5, delay circuit, 6, voice control circuit, 7, power supply,
8, display screen, 9, trigger, 10, active player, 61 sound pick-ups, 62 acoustic transducers, 63 comparators, 64, data processor,
65, memory.
Specific embodiment
A kind of multimedia education system of automatic control, as shown in Figure 1 comprising projection screen 1, host 2, projector 3；
The control projector 3 of host 1 is by the video content projection attended class on projection screen 1.As shown in Fig. 2, host 2 includes controller 4,
Delay circuit 5, voice control circuit 6, power supply 7, display screen 8, trigger 9 and active player 10.Delay circuit 5, voice
Control circuit 6, power supply 7, display screen 8, trigger 9 and active player 10 are connect with controller 4, and power supply 7 is controller
4, delay circuit 5, voice control circuit 6, display screen 8, trigger 9 and active player 10 provide operating power.It is described to prolong
When circuit 5 connect with projector and projection screen, unlatching and the pass of projector and projection screen can be set by delay circuit
Close the time；Such as can be set after receiving power-on instruction, projector is opened after delay 2 minutes and projection screen is opened, when
After receiving shutdown command, the 3 minutes projectors that are delayed are closed, and the 5 minutes projection screens that are delayed are packed up, and be delayed 6 minutes Host Shutdowns.It is logical
The switch time for crossing delay circuit design projector and projection screen, be conducive to the preheating and heat dissipation of projector, to improve throwing
The service life of shadow instrument, plays a good protective effect to it.
Wherein, as shown in figure 3, voice control circuit 6 includes sound pick-up 61, acoustic transducer 62, comparator 63, at data
Device 64 and memory 65 are managed, sound pick-up 61 receives voice signal, and the voice signal is converted to sound by acoustic transducer 62
Frequency signal, the audio signal are passed to comparator 63, and comparator 63 calls in the sample signal being stored in advance from memory 65
It is compared with the audio signal, to identify the audio signal, that is, identifies the language meaning that the audio signal represents, and lead to
Corresponding instruction is issued to controller 4 after crossing data processor 64, and controller 4 controls what the selection of active player 10 needed to play
Chapters and sections content.By voice control circuit 6, teacher selects desired class when explaining using courseware, without being manually operated
Part content, need to only say the title content of required courseware, and voice control circuit 6 can be converted into control instruction and open
Corresponding courseware content plays out.
Claims (2)
1. a kind of multimedia education system of voice control, including shadow curtain (1), host (2), projector (3)；The host
(2) include controller (4), delay circuit (5), voice control circuit (6), power supply (7), display screen (8), trigger (9) and
Active player (10)；Delay circuit (5), voice control circuit (6), power supply (7), display screen (8), trigger (9) and class
Part player (10) is connect with controller (4), power supply (7) be controller (4), delay circuit (5), voice control circuit (6),
Display screen (8), trigger (9) and active player (10) provide operating power；It is characterized by: the delay circuit (5)
It is connect with projector (3) and projection screen (1), projector (3) and projection screen (1) can be set by delay circuit (5)
Open and close the time；The voice control circuit (6) includes sound pick-up (61), acoustic transducer (62), comparator (63), number
According to processor (64) and memory (65), active player (10) can be controlled to be played by voice control circuit (6)
Courseware content.
2. the multimedia education system of voice control according to claim 1, it is characterised in that: sound pick-up (61) receives language
Sound signal, the voice signal are converted to audio signal by acoustic transducer (62), and the audio signal is passed to comparator
(63), comparator (63) is called in the sample signal being stored in advance from memory (65) and is compared with the audio signal,
To identify the audio signal, and corresponding instruction is issued afterwards to controller (4), controller (4) by data processor (64)
The courseware content that control active player (10) selection needs to play.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820549739.1U CN208819389U (en) | 2018-04-04 | 2018-04-04 | A kind of multimedia education system of voice control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820549739.1U CN208819389U (en) | 2018-04-04 | 2018-04-04 | A kind of multimedia education system of voice control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208819389U true CN208819389U (en) | 2019-05-03 |
Family
ID=66268321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820549739.1U Active CN208819389U (en) | 2018-04-04 | 2018-04-04 | A kind of multimedia education system of voice control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208819389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110751584A (en) * | 2019-10-25 | 2020-02-04 | 西安科技大学 | Ideology and politics network teaching system |
-
2018
- 2018-04-04 CN CN201820549739.1U patent/CN208819389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110751584A (en) * | 2019-10-25 | 2020-02-04 | 西安科技大学 | Ideology and politics network teaching system |
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